한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제16권2호
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  • Pages.108-113
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  • 2017
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  • 1598-6721(pISSN)
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  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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압축기 습동부 윤활 특성 향상을 위한 나노유체 특성(열전도도, 분산성, 점도변화, 마찰거동)

Characteristics of Nano-Fluid Improvement of Lubrication for Compressor Friction Parts

  • 투고 : 2017.02.24
  • 심사 : 2017.04.05
  • 발행 : 2017.04.30
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초록

The performance of refrigerant oil at the thrust bearing and at the journal bearing of a scroll compressor is a significant factor. This paper presents the friction and anti-wear characteristics of nano-fluid with a mixture of a refrigerant oil and nano powders. The particle size distribution and oxidation stability of nano powders prepared by the electrical explosion method were analyzed by TEM and BET. It was found that the nanoparticles showed a spherical morphology with sizes ranging of 40-60 nm and were covered with graphite layers of 2-4 nm. The thermal conductivity of POE oil was 0.1-0.5W/mk higher than that of POE oil. The coefficient of friction of Cu-POE was found to be 0.1 higher than that of Al2O3. The cooling capacity of the heat pump with nanofluid increased to 3.67%, and the performance was improved by 5.83%.

키워드

참고문헌

  1. Kim, S. C., Kim, K. M., Hwang, Y. J., Park, Y., D., Lee, J., K., "Study on Improvement of Lubrication Characteristics for the Material of Compressor Friction Parts with Nano-oil," J. Korean Soc. of Air-Conditioning and Refrigeration Engineering, Vol. 21, No. 10, pp. 559-563, 2009.
  2. Kim, S. H., Jang, G., C., Lee, C., W., "Development and Evaluation of Dry Lubricant Recycle Technologies for Wire Drawing Process," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 13, No. 2, pp. 35-40, 2014. https://doi.org/10.14775/ksmpe.2014.13.2.035
  3. Drost, R. T., Quesada, J. F., "Analytical and Experimental Investigation of a Scroll Compressor Lubrication System," Proc. of International Compressor Engineering Conference, Paper 846, 1992.
  4. Park, T. J. and Jo, J. C., "Lubrication Characteristics of Surface Textured Parallel Thrust Bearing-Effect of Bearing Speed," Proc. of KSPE Autumn Conference, pp. 597-598, 2010.
  5. Ku, B. C., Han, Y. C., Lee, J. E., Lee, J. K., Park, S. H. and Hwang, Y. J., "Tribological Effects of Fullerene Nanoparticles Added in Mineral Lubricants According to its Viscosity," International Journal of Precision Engineering and Manufacturing, Vol. 11, No. 4, pp. 607-611, 2010. https://doi.org/10.1007/s12541-010-0070-8
  6. Liu, G., Li, X., Lu, N. and Fan, R., "Enhancing AW/EP Property of Lubricant Oil by Adding Nano Al/Sn Particles," Tribology Letters, Vol. 18, No. 1, pp. 85-90, 2004. https://doi.org/10.1007/s11249-004-1760-0
  7. Yu-jin Hwang and Jae-hong Park and Hong-suk Kim "A Study on Thermal Conductivity Characteristics of Nanofluids," Proceedings of he SAREK Summer Annual Conference of Society of Air-conditioning and refrigerating engineers of Korea, pp. 162-167, 2015.
  8. Cho, H., J., Cho, Y., I., Cho, S., W., Lee, J., K., Park, M., C., Kim, D., J., Lee, K., H., "Performance Evaluation of Nano-Lubricants at Thrust Slide-Bearing of Scroll Compressor," Journal of the Korean Society for Precision Engineering Vol. 29, No. 1, pp. 121-125, 2012. https://doi.org/10.7736/KSPE.2012.29.1.121

피인용 문헌

  1. 분자동역학을 이용한 열원 주변에서의 나노입자의 분포에 대한 연구 vol.18, pp.5, 2019, https://doi.org/10.14775/ksmpe.2019.18.5.060